Case sensitive file extension and existence checking

Question

I need to check whether or not a file exists. Which can be accomplished by File#exists() method. But this existence checking is case sensitive. I mean if I have a f

Answer 1

The canonical name returns the name with case sensitive. If it returns a different string than the name of the file you are looking for, the file exists with a different case.

So, test if the file exists or if its canonical name is different

public static boolean fileExistsCaseInsensitive(String path) {
    try {
        File file = new File(path);
        return file.exists() || !file.getCanonicalFile().getName().equals(file.getName());
    } catch (IOException e) {
        return false;
    }
}